34、文明服务,是社会主义( )的重要内容。

44、A:Can you( ) ?

43、A: I’ve heard an announcement that my flight has been delayed. Could you tell me why?

45、A: Where are you going?

44、A: Are you going to take a domestic or an international flight?

43、( )is the carriage of goods from place to place by air.

42、The staff should give the( ) a manual search.

46、A:( )

45、( )can be taken on the plane as checked baggage.

44、Flight delays are always due to( ).

43、It is prohibited to carry any( ) on the plane.